Which is the most objectionable postulate of Lamarckism?

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Lamarckism**: Lamarckism is a theory of evolution proposed by Jean-Baptiste Lamarck, which suggests that organisms can pass on traits acquired during their lifetime to their offspring. This theory emphasizes the role of environmental influences on the development of characteristics.

2. **Identifying the Postulates of Lamarckism**: One of the key postulates of Lamarckism is that "acquired characteristics"—those traits developed through an organism's lifetime due to environmental pressures—can be inherited by the next generation.

3. **The Most Objectionable Postulate**: The most objectionable postulate of Lamarckism is the idea that these acquired characteristics can be inherited. This means that if an organism changes during its life (for example, a giraffe stretching its neck to reach higher leaves), those changes would be passed on to its offspring.

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